Kotlin Developer

Undisclosed; Sheffield; On-site; GBP 50,000 - 83,000; Full time

Job summary

Undisclosed is seeking a developer to work on Kotlin and Java-based web applications and APIs within the DevX Standards and Controls platform. You will join a small team building microservices with a modern tech stack and contribute to both back-end and light front-end work.

You will collaborate across engineering and QA to deliver features, resolve issues, and respond to customer requests. A strong emphasis on code quality, documentation, and Agile practices is expected.

Qualifications

• Kotlin experience or strong Java with willingness to learn Kotlin.
• Extensive experience with microservices architecture.
• Strong technical and analytical troubleshooting skills.
• Agile experience including Jira and Confluence.

Responsibilities

• Collaborate with developers, testers and the wider organisation to build and run products.
• Design, develop & implement back-end features per backlog/priority with some front-end exposure.
• Work with a simple UI framework as part of the role.
• Collaborate with the engineering team to design and launch new features.
• Proactively engage with customers to resolve issues and capture feature requests.
• Build APIs and microservices; participate in CI/CD for rapid iterations.

Skills

Kotlin

Microservices

Troubleshooting

Agile

Tools

Jira

Confluence

Github/Bitbucket

Job description

Duration: contract to run until 25/04/2027

Rate: up to £450.80 p/d Umbrellainside IR35

About The Project

The Developer Experience (DevX) Standards and Controls function is building a platform for control owners and development teams to manage/view their compliance with a range of software development controls.

The candidate would be working on Kotlin and Java‑based web applications and APIs. There are 2-3 applications and PoCs we are hiring for. Exact candidate allocation will depend on their experience and fit. All have a microservice architecture built using modern coding techniques.

• Experience in Kotlin (or significant Java experience with a willingness to learn Kotlin)
• Excellent writing skills and attention to detail in code
• Proactive person who will not wait to be told what to do next or be unblocked by others
• Experience working with standard developer collaboration Tools: Github/Bitbucket, Jira, Confluence, etc

Your Responsibilities

• Collaborate with developers, testers and the wider organisation to build and run products
• Design, develop & implement back-end features as per backlog/priority with a small element of frontend development.
• All apps use a simple UI framework so not strictly ‘front-end’ development.
• Collaborate with the rest of the engineering team to design and launch new features.
• Proactively work with customers to resolve their issues and respond to feature requests.
• Build APIs and microservices
• Work in an agile CI/CD environment to deliver rapid iterations at a sustained velocity
• Be an active member of a team, participating in peer reviews and in testing others code through automated test scripting

Skills & Experience We Require

• Experience in Kotlin (or Java with willingness to learn Kotlin)
• Lots of experience of working with microservices
• Strong technical and analytical troubleshooting skills
• Experience in working with Agile including the use of Jira/ Confluence.
• Good interpersonal skills
• Strong English skills, written and spoken

Optional/Nice To Have

• Good working knowledge of cloud technologies like AWS, Azure and GCP

What We Offer

• Contact with top IT technologies available in the market
• Internal training events and workshops
• In-house seminars with leading industry experts

All profiles will be reviewed against the required skills and experience. Due to the high number of applications we will only be able to respond to successful applicants in the first instance. We thank you for your interest and the time taken to apply!